code: def test_read_ubyte_out(self):
      with rasterio.open("tests/data/RGB.byte.tif") as s:
          a = np.zeros((718, 791), dtype=rasterio.ubyte)
          a = s.read(1, a)
          self.assertEqual(a.dtype, rasterio.ubyte)
  
imports: from hashlib import md5
  import unittest
  import numpy
  import pytest
  import rasterio
  from rasterio.errors import DatasetIOShapeError
label_desc: Use image node_id 5 for calling the ReaderContextTest obj's underlying member method code with example usage: obj.test_read_ubyte_out() without return types